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Filler / putty under Clawlock

Dan drb woodworks

Just curious what you’re using under Clawlock or pigmented level sealer , we’ve been having some wrinkling only in a few stops , we have changed nothing but only opened a new tub of wood filler . My rep says he’s had a few complaints about the same problem but most of his customers are using what we use Elmer’s .

9/19/19       #2: Filler / putty under Clawlock ...

We use Zar. Best one I’ve ever found. Takes stain much better. Their stains are the best I’ve found off the shelf.


9/19/19       #3: Filler / putty under Clawlock ...
DannyB Member

Elmer's has changed the exact composition a few times, but the interior/exterior stuff is mostly limestone (IE 70%) with a bunch of other stuff added.

It may be the batch variance is high enough in one of the random components to be a problem.

Personally I've never had a problem with elmers under clawlock, but famowood consistently wrinkles under it for me.

Zar, unfortunately, has also changed over the years.



At least the new one (from april, 2019) listed on zar's website is also basically limestone, but less (IE 50%).

The old one, listed on homedepot's website (from 2010) is basically calcium carbonate and some other types of rock.

I would actually expect the old one to take stain a lot better than the new one, at least, at a glance (calcium carbonate is very easy to color).

9/19/19       #4: Filler / putty under Clawlock ...
DannyB Member

(and before someone points it out: limestone contains a lot of calcium carbonate for sure, they aren't exactly the same)

9/20/19       #5: Filler / putty under Clawlock ...
Leo G Member

I've had the occasional issue with Elmer's putty. I'm still using the older version as long as I can find it. The one that's interior/exterior and doesn't have stainable plastered all over the container.

It's random and out of the same container when I have issues. And usually just sanding it down lightly and respraying solves the issue.

9/22/19       #6: Filler / putty under Clawlock ...
dan shaf Member

Are you waiting 24 hours before shooting your Clawlock? Elmer's deeds a 24 hour cure cycle before it can be hit with a solvent coating.

9/24/19       #7: Filler / putty under Clawlock ...

The way i fixed my problems with clawlock was to stop using it entirely. I used their WVP for awhile, before completely moving on from ML Campbell.

9/24/19       #8: Filler / putty under Clawlock ...

I've been using a putty by Timbermate
It's water based and dries fast and hard
Sands very nicely
Takes stains very well too

10/1/19       #9: Filler / putty under Clawlock ...

ProH2O is very good as is Timbermate. Both are water based but they dry rather quickly even in my sticky, humid climate.

10/1/19       #10: Filler / putty under Clawlock ...

Timbermate user here as well... no problems under catalyzed materials. switched over a couple years ago from famowood….. Tired of seeing 50 dried up half used cans of solvent based putty around the shop. we made the switch and have been super happy. Amazingly our filler budget has drastically reduced.

10/1/19       #11: Filler / putty under Clawlock ...
Hen Bob Member


Can you still get the ProH20?

My supplier wont restock it.

10/10/19       #12: Filler / putty under Clawlock ...

We can get the little overpriced cans from WURTH but I can't get the pint/quart sizes.

10/11/19       #13: Filler / putty under Clawlock ...

the pro h20 was a repackaged Timbermate….you can tell by the color names.....

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